Iowa Paycheck Calculator
Iowa's flat 3.8% applies to federal taxable income, so the federal standard deduction comes off first, then a $40 personal credit.
Iowa taxes income at a flat 3.8% for 2026. It starts from federal taxable income, so the federal standard deduction ($16,100 single, $32,200 married filing jointly, $24,150 head of household) is already out before the rate applies. A personal exemption credit of $40 ($80 for joint filers and heads of household) then comes off the tax.
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Estimates only. Not tax or legal advice. Consult a tax professional for accuracy.
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Iowa Paycheck FAQ
Common questions about paychecks and taxes in Iowa
What is the Iowa state income tax rate?
A flat 3.8% of Iowa taxable income. Iowa's 2024 tax law, Senate File 2442, set the rate from 2025 on, and the Iowa Department of Revenue confirms that in 2026 every level of taxable income is taxed at 3.8%.
Does Iowa have a standard deduction?
Not one of its own. Iowa taxable income starts from federal taxable income, so the federal standard deduction is already subtracted: $16,100 for single or married-filing-separately filers, $32,200 for married filing jointly or a qualifying widow(er) and $24,150 for head of household in 2026. The calculator subtracts it before applying 3.8%.
What is Iowa's personal exemption credit?
$40 for single, married-filing-separately and qualifying widow(er) filers and $80 for married filing jointly or head of household. It comes off the tax, and the calculator applies it. The extra $20 credits at 65 or older and for blindness and the $40 credit per dependent aren't included.
Are there local income taxes in Iowa?
Some Iowa school districts levy a surtax figured as a percentage of your Iowa income tax, and some areas add an emergency medical services surtax. The calculator doesn't include either.